.operation{
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: center;
}

.operation-context{
    width: 80%;
    height: 60px;
    background-color: #fbfbfb;
    display: flex;
    justify-content: flex-start;
}

.operation-context .btn{
    width: 60px;
    height: 30px;
    display: inline-block;
    background-color: #1890ff;
    text-decoration: none;
    color: #ffffff;
    text-align: center;
    border-radius: 10px;
    line-height: 30px;
    margin-top: 15px;
    margin-left: 20px;
}
